Electrode holder for electric furnaces



J. YOUNG.

ELECTRODE HOLDER FOR ELECTRIC FURNACES. APPLICATION FILED APR-12,1920.

1,32,823. Patented Oct. 24,1922.

5 IO 9 F 8 a is us a

FU8.2. 3 C

iNVENTQR. d aYcum Patented Oct. 24, 1922.

UNITED STATES JOHN YOUNG, OF WELLAND, ONTARIO, CANADA.

ELECTRODE HOLDER FOR ELECTRIC FURNACES.

Application filed April 12, 1920. Serial No. 373,334.

T 0 all whom 2'25 may concern:

Be it known that 1, JOHN YOUNG, of the town of Welland, in the county ofWelland, in the Province of Ontario, Canada, have invented certain newand useful Improvements in Electrode Holders for Electric Furnaces, ofwhich the following is the holder which can be easily actuated to permitof adjusting or replacing the electrodes.

My invention consists of a hinge block or bracket suitably secured to asupporting arm and insulated therefrom, opposed hollow arms suitablyhinged to the a hinge block, means for adjustably securingthe free endsof the said arms together, a water cooled terminal, water cooled meansfor conducting the current from the water cooled terminal to the opposedarms and means for connecting the interior of one of the arms with theother, all as hereinafter more particularly described and illustrated inthe accompanying drawing in which Fig. l'represents a plan view of adevice constructed according to my invention. Fig. 2 is a side elevationthereof, and

Fig. 3 is an enlarged plan view of the opposed arms and hinge block orbracket.

Like characters of reference indicate corresponding parts in thedifferent views.

1 is the supporting arm and 2 is the hinge block or bracket suitablysecured to the supporting arm 1 but-insulated therefrom. 3

and 4 are the opposed hollow arms suitably hinged to the hinge block 2by the bolts 5 and 6 respectively. 7 is a pipe connected at one end tothe interior of the arm 3 and at the other to the interior of the arm 4.The arms 3 and 4 are provided with sl0tted free ends 8 and 9. 10 is asuitable bolt extending through the slots in the free ends of the armsand provided with a suitable nut 11. This bolt adjustably secures thefree ends of the arms 3 and 4 together and clamps the electrode 12 inplace in any desired position. If required the bolt 9 may be hollow andsuitably connected by pipes 13 and 14 with a water supply in order thatsuch 15 is water 16 and 1" are tubes. re-

spectively connecting the water cooled terminal 15 with the hollow arms3 and 4 through the unions 18 and 1 9. 20 are insulating bushingsinserted into orifices in the hinge block 2. by means of which the boltsfor securing the hinged block to the supporting arm .1 are insulatedfrom such hinge block. I

The operation of my device is lows The tubes 16 and 17, which arepreferably constructed of suitable conducting material, such as copper,convey the current from the terminal 15 to the arms 3 and 4. As theelectrode 12 is clamped to such arms the currnt is thus conveyed to thiselectrode.

The whole device is water cooled, the water circulating through the tube16 through the union 18 into the hollow arm 3 thence through the pipe 7into the hollow arm 4 and back'through the union 19 into the pipe 17 andthence back through the terminal.

From the above description it will be seen that. I have devised anelectrode holder which will be simple and positive in opera tion and inwhich the electrode can be readily adjusted orreplaced. Further I haveconstructed a holder which is water cooled throughout and which will bemore efficient than those at present in use, as well as addingmaterially to the length of life of the same.

Further my device does away with the use of flexible connections whichare necessary if the current is brought in at the hinged block, and alsoentirely eliminates any danger of the hinge pins carrying current.

What I claim as my invention is.

1. In an electrode holder for electric furnaces, the combination withthe supporting arm and electrodes, of a, block secured to the supportingarm and insulated therefrom, water cooled means carried by the blOCn forclamping the electrode in position and water cooled means for conveyingcurrent to the aforesaid water cooled clamping means and electrodesindependently of the aforesaid block.

2. In an electrode holder for electric furnaces, the combination withthe supporting arm and electrode, of a hinge block secured to thesupporting arm and insulated therein r01- from, opposed water cooledarms hinged to said hinge block and water cooled means for conveying thecurrent to said water cooled arms independently of the aforesaidsupporting .arm and block, said water cooled arms supporting saidelectrode.

3. In an electrode holder for electric turnaces, the combination withthe supporting arm and the electrode, of a hinge block secured to thesupporting arm and insulated therefrom, opposed hollow arms hinged tothe hinge block, the electrode supported be tween said arms, a terminal,pipes, unions connecting the pipes to the respective opposed arms, saidpipes connected at their other ends to the terminal, and means forconnecting the interiors of the opposed arms together, said pipesconstructed of material of high electro conductivity.

4. In an electrode holder for electric furnaces, the combination withthe supporting arm and the electrode, of a hinge block secured to thesupporting arm andinsulated therefrom, opposed hollow arms hinged to thehinge block, the electrode supported between said arms, a terminal,pipes, unions connecting the pipes to the respective opposed arms, saidpipes connected at their other ends to the terminal and being constructed of material of high electro conductivity, and apipe connectingthe interior of one arm with the other. I

5 In an electrode holder for electric furnaces, the combination with thesupporting arm and the electrode, of a. hinge block secured to thesupporting arm and insulated therefrom, opposed hollow arms hinged tothe hinge block, the electrode supported between said arms, a terminal,pipes, unions connecting the pipes to the respective opposed arms, saidpipes connected at their other ends to the terminal and beingconstructed of material of high electro conductivity, and a water cooledbolt adjustably securing the free ends of said opposed arms together.

6. In an electrode holder for electric furnaces, an electrode clampcomprising two opposed hollow arms, the electrode being supportedbetween such arms, an electric terterminal, pipes constructed ofmaterial of high electro conductivity, each connected at one end to theterminal, and at the other to the corresponding hollow arm, means forcirculating water through one pipe, through the arms and back throughthe other pipe, said pipes conducting the current to the elec trodethrough such arms.

JOHN YOUNG.

